Examples of org.osgi.service.prefs.Preferences.nodeExists()

Class org.osgi.service.prefs.Preferences

Examples of org.osgi.service.prefs.Preferences.nodeExists()

org.osgi.service.prefs.Preferences.nodeExists()
Returns true if the named node exists. Accepts a relative or absolute pathname. Absolute pathnames (which begin with {@code '/'}) are interpreted relative to the root of this node. Relative pathnames (which begin with any character other than {@code '/'}) are interpreted relative to this node itself. The pathname {@code ""} is valid, and refers to thisnode itself.
If this node (or an ancestor) has already been removed with the {@link #removeNode()} method, it is legal to invoke this method,but only with the pathname {@code ""}; the invocation will return {@code false}. Thus, the idiom {@code p.nodeExists("")} may be used totest whether {@code p} has been removed. @param pathName the path name of the node whose existence is to bechecked. @return true if the specified node exists. @throws BackingStoreException if this operation cannot be completed dueto a failure in the backing store, or inability to communicate with it. @throws IllegalStateException if this node (or an ancestor) has beenremoved with the {@link #removeNode()} method and{@code pathname} is not the empty string ({@code ""}). @throws IllegalArgumentException if the path name is invalid (i.e., itcontains multiple consecutive slash characters, or ends with a slash character and is more than one character long).

      //TODO once bug 90500 is fixed, should be simpler
      // for now, take the long way
      if (!node.nodeExists(projectName))
        return false;
      node = node.node(projectName);
      if (!node.nodeExists(Platform.PI_RUNTIME))
        return false;
      node = node.node(Platform.PI_RUNTIME);
      if (!node.nodeExists(CONTENT_TYPE_PREF_NODE))
        return false;
      node = node.node(CONTENT_TYPE_PREF_NODE);

View Full Code Here

        return false;
      node = node.node(projectName);
      if (!node.nodeExists(Platform.PI_RUNTIME))
        return false;
      node = node.node(Platform.PI_RUNTIME);
      if (!node.nodeExists(CONTENT_TYPE_PREF_NODE))
        return false;
      node = node.node(CONTENT_TYPE_PREF_NODE);
      return node.getBoolean(PREF_LOCAL_CONTENT_TYPE_SETTINGS, false);
    } catch (BackingStoreException e) {
      // exception treated when retrieving the project preferences

View Full Code Here

    try {
      //TODO once bug 90500 is fixed, should be as simple as this:
      //      String path = project.getName() + IPath.SEPARATOR + ResourcesPlugin.PI_RESOURCES + IPath.SEPARATOR + ENCODING_PREF_NODE;
      //      return node.nodeExists(path) ? node.node(path) : null;
      // for now, take the long way
      if (!node.nodeExists(project.getName()))
        return null;
      node = node.node(project.getName());
      if (!node.nodeExists(ResourcesPlugin.PI_RESOURCES))
        return null;
      node = node.node(ResourcesPlugin.PI_RESOURCES);

View Full Code Here

      //      return node.nodeExists(path) ? node.node(path) : null;
      // for now, take the long way
      if (!node.nodeExists(project.getName()))
        return null;
      node = node.node(project.getName());
      if (!node.nodeExists(ResourcesPlugin.PI_RESOURCES))
        return null;
      node = node.node(ResourcesPlugin.PI_RESOURCES);
      if (!node.nodeExists(ENCODING_PREF_NODE))
        return null;
      return node.node(ENCODING_PREF_NODE);

View Full Code Here

        return null;
      node = node.node(project.getName());
      if (!node.nodeExists(ResourcesPlugin.PI_RESOURCES))
        return null;
      node = node.node(ResourcesPlugin.PI_RESOURCES);
      if (!node.nodeExists(ENCODING_PREF_NODE))
        return null;
      return node.node(ENCODING_PREF_NODE);
    } catch (BackingStoreException e) {
      // nodeExists failed
      String message = Messages.resources_readingEncoding;

View Full Code Here

    }


    protected boolean loadState() {
        try {
            Preferences prefs = preferences.getUserPreferences("FeaturesServiceState");
            if (prefs.nodeExists("repositories")) {
                Set<URI> repositories = loadSet(prefs.node("repositories"));
                for (URI repo : repositories) {
                    internalAddRepository(repo);
                }
                installed = loadMap(prefs.node("features"));

View Full Code Here

  @Override
  public PuppetDBConnectionPreferences add(String hostname, int port) throws BackingStoreException {
    PuppetDBConnectionPreferencesImpl pa = new PuppetDBConnectionPreferencesImpl(hostname, port);
    String ident = pa.getIdentifier();
    Preferences root = getPuppetDBNode();
    if(root.nodeExists(ident))
      throw new IllegalArgumentException("A node for " + ident + " already exists");
    root.node(ident);
    pa.makePersistent();
    return pa;
  }

View Full Code Here

0 1 2

TOP

All source code are property of their respective owners. Java is a trademark of Sun Microsystems, Inc and owned by ORACLE Inc. Contact coftware#gmail.com.